Tiffin ALLEGRO BUS problems and owner complaints

COOLING SYSTEM FAN DRIVE BELT TENSIONER DEVELOPS CRACKS THAT PROGRESS TO THE POINT OF CATASTROPHIC FAILURE WHERE HALF THE BRACKET END AND TWO HEAVY PULLEYS ARE EJECTED FROM THE VEHICLE BY THE FAST MOVING FAN BELT.. THIS HAS BEEN A KNOWN PROBLEM AND TIFFIN HAS REDESIGNED THE BRACKET AND IS REPAIRING THEM AS THEY FAIL. THERE HAVE BEEN NUMEROUS FAILURES AND POSTS ABOUT THEM POSTED IN THE ON-LINE RECREATIONAL VEHICLE FORUMS. AS A RESULT OF THESE POSTS, I ADDED A CHECK OF THIS BRACKET TO MY MAINTENANCE CHECKLIST. A MAJOR MAINTENANCE CYCLE WAS COMPLE…

Look up ODI 11093752 at NHTSA ↗

AT HIGHWAY SPEED, DASH LIT UP WITH WARNING LIGHTS, DASH SOUNDED ALARMS, MOBILE EYE FLASHED ERR..AND DASH DISPLAY FLASHED ABS COMM ERROR! 60 SECONDS LATTER THE ENGINE STOPPED (EVERYTHING DEAD)...BUT MOTOR COACH STILL MOVING WITH NO POWER STEERING! LUCKILY I WAS ABLE TO STOP THE COACH IN A BUSY EXIT LANE. AFTER 4 HOURS (POLICE STAYED WITH US THE ENTIRE TIME)...WAS ABLE TO RESET ECM ERROR CODE AND START THE ENGINE. AFTER CONTACTING TIFFIN, THEY ADVISED TO DISCONNECT MOBILE EYE UNDER DASH. SPENT 1 HOUR UNDER DASH (WHILE IN TRAFFIC) TRYING TO FIN…

Look up ODI 11349293 at NHTSA ↗

THIS IS NOT A SINGLE ISOLATED INCIDENT. THERE HAVE BEEN A LARGE NUMBER OF OWNERS WITH THIS ISSUE AND THE MANUFACTURER HAS NOT PROVIDED AN ACCEPTABLE SOLUTION. *DT ON THE 2015-2018 TIFFIN ALLEGRO BUS ON THE POWER GLIDE CHASSIS, A CRITICAL DESIGN DEFECT EXISTS WITH THE ENGINE FAN DRIVE TENSIONER BRACKET AND TENSIONER PULLEY ASSEMBLY. THE FAN DRIVE IS DESIGNED TO ENGAGE AT A PRE-DETERMINED ENGINE COOLANT TEMPERATURE AND IS UTILIZED TO LOWER ENGINE TEMPERATURE AS THE ENGINE COOLANT TEMPERATURE REACHES A HIGH LEVEL. THE TENSIONER BRACKET IS CO…

Look up ODI 11128294 at NHTSA ↗

CUMMINS LSC SERIAL#46171810, DIESEL FUEL LIFT PUMP 2002 ALEGRO BUS RV WEATHER COLD. FUEL LIFT PUMP LOST GASKET BETWEEN MOUNTING BRACKET AND PUMP, CAUSING FUEL TO DRAIN ONTO STARTER AND THEN GROUND. HAVE SEEN PROBLEM MANY TIMES IN PAST AS I'M A DIESEL MECHANIC. MOST ALWAYS IN COLD WEATHER. SAME PROBLEM EACH TIME,LOSS OF GASKET, PUMP STILL FUNCTIONING. FUEL LEAK ONTO STARTER IS ENOUGH TO CAUSE FEAR OF STARTER IGNITING FUEL. FIRE DANGER IS IN MY OPINION VERY HIGH! MY RV WAS PARKED IN DRIVE WITH NO APPARENT LEAK. "KEY" MUST BE IN "ON" POSITION TO…

Look up ODI 10215429 at NHTSA ↗

The contact owns a 2018 Tiffin Allegro Bus. The contact stated that while driving at various speeds, the vehicle would independently downshift as the Diesel Exhaust Fluid (DEF) warning light would illuminate. The manufacturer was notified of the failure and the contact was informed that they were aware of the failure; however, parts for the repair was unavailable. The vehicle had yet to be repaired. The failure mileage was approximately 8,000.

Look up ODI 11435124 at NHTSA ↗

I HAVE A CLASS A MOTORHOME WITH GOODYEAR G159 TIRES (245/70R19.5). I HAD THE VEHICLE INSPECTED AT A MECHANIC SHOP AND THEY CHECKED THE TIRES, AND SET THEM TO THE MOTORHOME MANUFACTURER'S STATED RECOMMENDATION OF 80 PSI. A BLOWOUT LATER OCCURRED AT 60 MPH ON I-65 CAUSING THE TREAD TO SEPARATE AND DAMAGE THE VEHICLE.

Look up ODI 11140387 at NHTSA ↗

THE HEADBOARD ON THIS MOTORHOME IS AN APPROXIMATELY 40 POUND MIRROR AND WOODEN FRAME SUPPORTED ON THE PANELING WALL BEHIND AND ABOVE YOUR HEAD WHILE SLEEPING. THIS MIRROR AND FRAME DETACHED FROM THE WALL SEPARATING AND STRIKING THE PILLOWS THAT WE HAD JUST VACATED THAT MORNING. THE WEIGHT WOULD HAVE CAUSED SEVERE INJURY OR POSSIBILITY A FATALITY HAD WE STILL BEEN IN BED. I CONTACTED THE MANUFACTURER (PHONE AND EMAIL WITH PICTURES) BUT ONLY RECEIVED A CAVALIER ATTITUDE ABOUT THIS ISSUE STATING IT WAS OUT OF WARRANTY AND SUGGESTING I RE-GLUE OR S…

Look up ODI 10763104 at NHTSA ↗

AT HIGHWAY SPEED, DASH LIT UP WITH WARNING LIGHTS, DASH SOUNDED ALARMS, MOBILE EYE FLASHED ERR..AND DASH DISPLAY FLASHED ABS COMM ERROR! 60 SECONDS LATTER THE ENGINE STOPPED (EVERYTHING DEAD)...BUT MOTOR COACH STILL MOVING WITH NO POWER STEERING! LUCKILY I WAS ABLE TO STOP THE COACH IN A BUSY EXIT LANE. AFTER 4 HOURS (POLICE STAYED WITH US THE ENTIRE TIME)...WAS ABLE TO RESET ECM ERROR CODE AND START THE ENGINE. AFTER CONTACTING TIFFIN, THEY ADVISED TO DISCONNECT MOBILE EYE UNDER DASH. SPENT 1 HOUR UNDER DASH (WHILE IN TRAFFIC) TRYING TO FIN…

Look up ODI 11349293 at NHTSA ↗

DT*: THE CONTACT STATED WHEN THE MOTOR HOME WAS EXPOSED TO HOT WEATHER THERE WERE STRONG FUMES PRESENT BELIEVED TO BE FORMALDEHYDE. THE FUMES WERE VERY IRRITATING TO THE EYES OF ALL OCCUPANTS. THE CONTACT'S SPOUSE WAS HOSPITALIZED FOR FIVE DAYS DUE TO RESPIRATORY PROBLEMS, ASTHMA, PNEUMONIA AND A COLLAPSED LUNG. THE CONTACT EXPRESSED THAT THERE WERE OTHER SIMILAR COMPLAINTS ABOUT THIS WERE POSTED ON THE INTERNET. THE DEALERSHIP AND THE MANUFACTURER INFORMED THE CONTACT THAT THE SMELL WOULD GET BETTER AFTER THE VEHICLE GOT OLDER. *AK

Look up ODI 10165759 at NHTSA ↗

I RECEIVED RECALL NOTICE 14V-271. IT REQUIRES AN INLINE FUSE TO PREVENT POSSIBLE FIRES. IT DOES NOT ADDRESS THE ISSUE WHICH IS WATER GETTING INTO THE FRONT AND REAR CLEARANCE LIGHTS AND CAUSING THEM TO BECOME INOPERATIVE. WHICH MEANS THE VEHICLE WILL BE WITHOUT THE AFFECTIVE LIGHTS DURING OPERATION. THE FAILURE IS ALMOST UNIVERSALLY SURE TO OCCUR.... SUGGEST THAT THE MANUFACTURE REPLACE THE LIGHTS TO ASSURE COMPLIANCE WITH FEDERAL, STATE AND LOCAL LAWS. *TR

Look up ODI 10689423 at NHTSA ↗